Again he resumed his flight. He reached the Jefferson, and discovered, some distance below, a raft of driftwood against the head of an island. He dived under this raft and found a place where he could get his head above water. There, in painful suspense, he awaited developments. The Indians explored the island and examined the raft, but Colter's audacious spirit was beyond their comprehension. It did not occur to them that he was all the time surveying their movements from his hiding place under the timber, and they finally abandoned the search and withdrew. Colter had saved himself. When evening came he swam several miles down the river and then went ashore. For seven days he wandered naked and unarmed, over stones, cacti, and the prickly pear, scorched by the heat of noon and chilled by the frost of night, finding his sole subsistence in such roots as he might dig, until at last he reached Lisa's trading post on the Bighorn River. Even this terrible adventure could not dismay the dauntless Colter, and he remained still another year in the mountains. Finally, in the spring of 1810, he got into a canoe and dropped down the river, "three thousand miles in thirty days," reaching St. Louis, May 1st, after an absence of six years. Colter remained in St. Louis for a time giving Clark what information he could concerning the places he had seen, and evidently talking a great deal about his adventures. Finally he retired to the country some distance up the Missouri, and married. Here we again catch a glimpse of him when the Astorians were on their way up the river. As Colter saw the well appointed expedition setting out for the mountains, the old fever seized him again and he was upon the point of joining the party. But what the hardships of the wilderness and the pleasures of civilization could not dissuade him from doing, the charms of a newly-married wife easily accomplished. Colter remained behind; and here the curtain of oblivion falls upon the discoverer of the Yellowstone. It is not without genuine satisfaction that, having followed him through the incredible mazes of "Colter's Hell," we bid him adieu amid surroundings of so different a character. CHAPTER IV. THE TRADER AND TRAPPER.